Would this work?
https://www.amazon.com/inShareplus-Mounted-Switching-Connector-Adapter/dp/B07G47GFGV/ref=sr_1_1?dchild=1&keywords=12v%2Bpower%2Bsupply%2Bdc&qid=1585018916&s=lawn-garden&sr=1-1&th=1